The lifetime of a certain type of battery is normally distributed with mean value 15 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value (in hours) is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

2425

step-by-step explanation:

c.

step-by-step explanation:

ιт ιѕ:

125.28

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